Talking-machine.



No. 898,525. PATENTED JULY 14, 1908.

J. M. LANDON.

TALKING MACHINE. APPLICATION IILBD Arnin, 190a.

M MM M W nnrrn JOSEPH MARGULIES LANDON, OF LONDON, ENGLAND.

TALKING-MACHINE Specification of Letters Patent.

Patented July 14, 1908.

Application filed April 17, 1908. Serial No. 427,761.

T 0 all whom it in (1 1] concern:

Be it known that I, JOSEPH lllnnoumns liANDON, nsuhject of the King of England, residing at 20 Central Hill, in the county of London, England, have invented certnin new and useful Improvements in or Relating to 'lnlking-ll'lachincs; and l doherehy declare i the following to he a full, clear, and exact deseription of the invention, such ns will ennhl'c others skilled in the art to which it nnpertnins to make and use the some.

This in \rention consists in improvements in or reliioing to taiking machines and refers pirticulnrly to the sound boxes for recording or reproducing.

According to this invcnthm. I provide spring incclmnisni of such it chnrncter in conncction with the sound box that although the spring is rigidly held in position it is not cmitrolled in such it wny as to minimize its action and render it inscnsihle to the slightest vilnntions ol the stylus, Wllili art the some time the nicchnnisin is not too sensitive so as to cause over vihrzttion or blasting.

in carrying out my invention, 1 lix to the shcll of ll sound hox one edge ol at lot spring, in such :1 wny that the spring in the szuno plane us the dinphrngrm; the other cdge ol the spring over which the stylus lnir conncclcd is left free to move. The [lot spiing only he formed of steel, or ol on other springy mcinl or mntcrinl, such for instance ns lirnss, ,gluss, micn or the like. i. out oonnect thc sound box lhus constructed to the cod of the trumpet or to the lone :lllll or the like liy nnv snilnhle mcnns. Arid in ordcr thnt my soid invention mnv he better undcr stood I will now proceed to dcscrihc the so with rcl'crcncc to the (lrn-i 'ing accompany i I this s icoilicntion, in \r'hich:-- l

l igurn I shows [rout vii-w of n sound hm; constructed according to my invention; il i 2 shows side view of some.

The some letters ol rcl'crencc :zrc cmg ioyod to dcnotc the some ports inhoth the lions:

a shows the shell of the sound box, I) shows the inner end of the stylus her, which. is fixed to the diaphragm c in any suitnlile .nnfinner.

(I shows a {lot spring, one edge of which is fixed in the shell a of the sound box, the other edge being fixed in n stylus holder .0. The cndj ol' the stylus her is fixed to no (-LJllllzilvfil i g of the stylus holder e.

It shows :1 screw to screw against the shell (1 of the sound box.

A shows the stylus and m the sound exit tube.

The form of the device shown in the ill?- con'ninnying drawing wherein the stylus 77, the that spring (I and the diaphragm c are all in the same plane, is the one whi h i ha e found to answer best in prnci'ice, but the de tails of carrying out the invention may he vnried somewhat without dcpnrting, from the principle thereof.

In place of using it regulniing screw it I may use it pin or peg or its equivalent for the same purpose.

What I claim and desire to sccure by [ettcrs Potent of the United States of Amt-ri h. is:--

in :1- sound box. the comliinntii'in of n snita hlo frame: it dinphrngm mounted therein: :1 stylus hnr connected to Sitl'll diaphragm; it lint spring otnneol'od directly to said l'rnmc and lying in the same plane ns the dinphrngm; n stylus holder with which rtili'l spring is also connected, and provided \\iih on extension in which one end of said stylus bar is lixcd; and n scrcw passing through said extension and ndnptod to cntnct with thc shell oi the sound hox. snhsmnlizdly as dc sciihcd.

in testimony whereof, I ii-lllN my s gnature. in presence of two witness s.

E. Jinn, l ij Srnnonns 

